sound/soc/samsung/speyside.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // Speyside audio support
   4 //
   5 // Copyright 2011 Wolfson Microelectronics
   6
   7 #include <sound/soc.h>
   8 #include <sound/soc-dapm.h>
   9 #include <sound/jack.h>
  10 #include <linux/gpio.h>
  11 #include <linux/module.h>
  12
  13 #include "../codecs/wm8996.h"
  14 #include "../codecs/wm9081.h"
  15
  16 #define WM8996_HPSEL_GPIO 214
  17 #define MCLK_AUDIO_RATE (512 * 48000)
  18
  19 static int speyside_set_bias_level(struct snd_soc_card *card,
  20                                    struct snd_soc_dapm_context *dapm,
  21                                    enum snd_soc_bias_level level)
  22 {
  23         struct snd_soc_pcm_runtime *rtd;
  24         struct snd_soc_dai *codec_dai;
  25         int ret;
  26
  27         rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
  28         codec_dai = rtd->codec_dai;
  29
  30         if (dapm->dev != codec_dai->dev)
  31                 return 0;
  32
  33         switch (level) {
  34         case SND_SOC_BIAS_STANDBY:
  35                 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
  36                                              32768, SND_SOC_CLOCK_IN);
  37                 if (ret < 0)
  38                         return ret;
  39
  40                 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
  41                                           0, 0, 0);
  42                 if (ret < 0) {
  43                         pr_err("Failed to stop FLL\n");
  44                         return ret;
  45                 }
  46                 break;
  47
  48         default:
  49                 break;
  50         }
  51
  52         return 0;
  53 }
  54
  55 static int speyside_set_bias_level_post(struct snd_soc_card *card,
  56                                         struct snd_soc_dapm_context *dapm,
  57                                         enum snd_soc_bias_level level)
  58 {
  59         struct snd_soc_pcm_runtime *rtd;
  60         struct snd_soc_dai *codec_dai;
  61         int ret;
  62
  63         rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
  64         codec_dai = rtd->codec_dai;
  65
  66         if (dapm->dev != codec_dai->dev)
  67                 return 0;
  68
  69         switch (level) {
  70         case SND_SOC_BIAS_PREPARE:
  71                 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
  72                         ret = snd_soc_dai_set_pll(codec_dai, 0,
  73                                                   WM8996_FLL_MCLK2,
  74                                                   32768, MCLK_AUDIO_RATE);
  75                         if (ret < 0) {
  76                                 pr_err("Failed to start FLL\n");
  77                                 return ret;
  78                         }
  79
  80                         ret = snd_soc_dai_set_sysclk(codec_dai,
  81                                                      WM8996_SYSCLK_FLL,
  82                                                      MCLK_AUDIO_RATE,
  83                                                      SND_SOC_CLOCK_IN);
  84                         if (ret < 0)
  85                                 return ret;
  86                 }
  87                 break;
  88
  89         default:
  90                 break;
  91         }
  92
  93         card->dapm.bias_level = level;
  94
  95         return 0;
  96 }
  97
  98 static struct snd_soc_jack speyside_headset;
  99
 100 /* Headset jack detection DAPM pins */
 101 static struct snd_soc_jack_pin speyside_headset_pins[] = {
 102         {
 103                 .pin = "Headset Mic",
 104                 .mask = SND_JACK_MICROPHONE,
 105         },
 106 };
 107
 108 /* Default the headphone selection to active high */
 109 static int speyside_jack_polarity;
 110
 111 static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
 112                                 struct snd_soc_dapm_widget *sink)
 113 {
 114         if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
 115                 return 1;
 116         if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
 117                 return 1;
 118
 119         return 0;
 120 }
 121
 122 static void speyside_set_polarity(struct snd_soc_component *component,
 123                                   int polarity)
 124 {
 125         speyside_jack_polarity = !polarity;
 126         gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
 127
 128         /* Re-run DAPM to make sure we're using the correct mic bias */
 129         snd_soc_dapm_sync(snd_soc_component_get_dapm(component));
 130 }
 131
 132 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
 133 {
 134         struct snd_soc_dai *dai = rtd->codec_dai;
 135         int ret;
 136
 137         ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
 138         if (ret < 0)
 139                 return ret;
 140
 141         return 0;
 142 }
 143
 144 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
 145 {
 146         struct snd_soc_dai *dai = rtd->codec_dai;
 147         struct snd_soc_component *component = dai->component;
 148         int ret;
 149
 150         ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
 151         if (ret < 0)
 152                 return ret;
 153
 154         ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
 155         if (ret != 0)
 156                 pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
 157         gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
 158
 159         ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
 160                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
 161                                     &speyside_headset, speyside_headset_pins,
 162                                     ARRAY_SIZE(speyside_headset_pins));
 163         if (ret)
 164                 return ret;
 165
 166         wm8996_detect(component, &speyside_headset, speyside_set_polarity);
 167
 168         return 0;
 169 }
 170
 171 static int speyside_late_probe(struct snd_soc_card *card)
 172 {
 173         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 174         snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
 175         snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
 176         snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
 177         snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
 178         snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
 179         snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
 180
 181         return 0;
 182 }
 183
 184 static const struct snd_soc_pcm_stream dsp_codec_params = {
 185         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 186         .rate_min = 48000,
 187         .rate_max = 48000,
 188         .channels_min = 2,
 189         .channels_max = 2,
 190 };
 191
 192 static struct snd_soc_dai_link speyside_dai[] = {
 193         {
 194                 .name = "CPU-DSP",
 195                 .stream_name = "CPU-DSP",
 196                 .cpu_dai_name = "samsung-i2s.0",
 197                 .codec_dai_name = "wm0010-sdi1",
 198                 .platform_name = "samsung-i2s.0",
 199                 .codec_name = "spi0.0",
 200                 .init = speyside_wm0010_init,
 201                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 202                                 | SND_SOC_DAIFMT_CBM_CFM,
 203         },
 204         {
 205                 .name = "DSP-CODEC",
 206                 .stream_name = "DSP-CODEC",
 207                 .cpu_dai_name = "wm0010-sdi2",
 208                 .codec_dai_name = "wm8996-aif1",
 209                 .codec_name = "wm8996.1-001a",
 210                 .init = speyside_wm8996_init,
 211                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 212                                 | SND_SOC_DAIFMT_CBM_CFM,
 213                 .params = &dsp_codec_params,
 214                 .ignore_suspend = 1,
 215         },
 216         {
 217                 .name = "Baseband",
 218                 .stream_name = "Baseband",
 219                 .cpu_dai_name = "wm8996-aif2",
 220                 .codec_dai_name = "wm1250-ev1",
 221                 .codec_name = "wm1250-ev1.1-0027",
 222                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 223                                 | SND_SOC_DAIFMT_CBM_CFM,
 224                 .ignore_suspend = 1,
 225         },
 226 };
 227
 228 static int speyside_wm9081_init(struct snd_soc_component *component)
 229 {
 230         /* At any time the WM9081 is active it will have this clock */
 231         return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
 232                                         MCLK_AUDIO_RATE, 0);
 233 }
 234
 235 static struct snd_soc_aux_dev speyside_aux_dev[] = {
 236         {
 237                 .name = "wm9081",
 238                 .codec_name = "wm9081.1-006c",
 239                 .init = speyside_wm9081_init,
 240         },
 241 };
 242
 243 static struct snd_soc_codec_conf speyside_codec_conf[] = {
 244         {
 245                 .dev_name = "wm9081.1-006c",
 246                 .name_prefix = "Sub",
 247         },
 248 };
 249
 250 static const struct snd_kcontrol_new controls[] = {
 251         SOC_DAPM_PIN_SWITCH("Main Speaker"),
 252         SOC_DAPM_PIN_SWITCH("Main DMIC"),
 253         SOC_DAPM_PIN_SWITCH("Main AMIC"),
 254         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
 255         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
 256         SOC_DAPM_PIN_SWITCH("Headphone"),
 257 };
 258
 259 static struct snd_soc_dapm_widget widgets[] = {
 260         SND_SOC_DAPM_HP("Headphone", NULL),
 261         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 262
 263         SND_SOC_DAPM_SPK("Main Speaker", NULL),
 264
 265         SND_SOC_DAPM_MIC("Main AMIC", NULL),
 266         SND_SOC_DAPM_MIC("Main DMIC", NULL),
 267 };
 268
 269 static struct snd_soc_dapm_route audio_paths[] = {
 270         { "IN1RN", NULL, "MICB1" },
 271         { "IN1RP", NULL, "MICB1" },
 272         { "IN1RN", NULL, "MICB2" },
 273         { "IN1RP", NULL, "MICB2" },
 274         { "MICB1", NULL, "Headset Mic", speyside_get_micbias },
 275         { "MICB2", NULL, "Headset Mic", speyside_get_micbias },
 276
 277         { "IN1LP", NULL, "MICB2" },
 278         { "IN1RN", NULL, "MICB1" },
 279         { "MICB2", NULL, "Main AMIC" },
 280
 281         { "DMIC1DAT", NULL, "MICB1" },
 282         { "DMIC2DAT", NULL, "MICB1" },
 283         { "MICB1", NULL, "Main DMIC" },
 284
 285         { "Headphone", NULL, "HPOUT1L" },
 286         { "Headphone", NULL, "HPOUT1R" },
 287
 288         { "Sub IN1", NULL, "HPOUT2L" },
 289         { "Sub IN2", NULL, "HPOUT2R" },
 290
 291         { "Main Speaker", NULL, "Sub SPKN" },
 292         { "Main Speaker", NULL, "Sub SPKP" },
 293         { "Main Speaker", NULL, "SPKDAT" },
 294 };
 295
 296 static struct snd_soc_card speyside = {
 297         .name = "Speyside",
 298         .owner = THIS_MODULE,
 299         .dai_link = speyside_dai,
 300         .num_links = ARRAY_SIZE(speyside_dai),
 301         .aux_dev = speyside_aux_dev,
 302         .num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
 303         .codec_conf = speyside_codec_conf,
 304         .num_configs = ARRAY_SIZE(speyside_codec_conf),
 305
 306         .set_bias_level = speyside_set_bias_level,
 307         .set_bias_level_post = speyside_set_bias_level_post,
 308
 309         .controls = controls,
 310         .num_controls = ARRAY_SIZE(controls),
 311         .dapm_widgets = widgets,
 312         .num_dapm_widgets = ARRAY_SIZE(widgets),
 313         .dapm_routes = audio_paths,
 314         .num_dapm_routes = ARRAY_SIZE(audio_paths),
 315         .fully_routed = true,
 316
 317         .late_probe = speyside_late_probe,
 318 };
 319
 320 static int speyside_probe(struct platform_device *pdev)
 321 {
 322         struct snd_soc_card *card = &speyside;
 323         int ret;
 324
 325         card->dev = &pdev->dev;
 326
 327         ret = devm_snd_soc_register_card(&pdev->dev, card);
 328         if (ret)
 329                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 330                         ret);
 331
 332         return ret;
 333 }
 334
 335 static struct platform_driver speyside_driver = {
 336         .driver = {
 337                 .name = "speyside",
 338                 .pm = &snd_soc_pm_ops,
 339         },
 340         .probe = speyside_probe,
 341 };
 342
 343 module_platform_driver(speyside_driver);
 344
 345 MODULE_DESCRIPTION("Speyside audio support");
 346 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 347 MODULE_LICENSE("GPL");
 348 MODULE_ALIAS("platform:speyside");